Centrifugal separator.



e. E. SANFORD.

.CENTRIFUGAL SEP'ARATOR.

APPLICATION FILED FEB-27.1911. 1,161,981 Patented Nov. 30, 1915.

5. E. SANFUR D. CENTRIFUGAL SEPARATOR. APPLICATION FiLED Q EB- 27 19] I.Llfilfigl, v I Patented Nov. 30, 1915.

2 SHEETS-SHEET 2.

awuowtoz GEORGE EDWARD SANFORD, OF OAK PAREK, ILLINOIS, ASSIGNOR, BYMESNE ASSIGN- MENTS, TO SANFORD CLABIFYING AND SEPARATING CC DMPANY,GOEPGRATION F DELAWAR-E.

OENTRIFUGAL SE PARATOR.

Application filed February To all whom it may some?" Be it known that l,Gnonon E. Sanrono, a citizen of the United States, residing at 147 NorthHumphrey avenue, in the city of Oak Park, in the countyof Cook and Stateof Illinois, have invented certain new and use- 'ful Improvements in(lentrirugal Separators,-

this class for the purposes, 1, to generally increase their efficiency;A, to simplify their vconstruction; 3, to add to their durability;

4:, permit of the easy and economical removal and replacement or" parts,and 5, to permit of thorough cleaning without the necessity of removingany parts.

With these, and other objects in view, my invention. consists in theimproved construction, arrangement and combination of the parts of'amachine of this class, all as hereinafter fully described and afterwardspecifically pointed out in the appended claims.

In order that those skilled in the art may be enabled to make and use myinven tion, I will now proceed to fully and specifically describe thepreferred embodiment thereof as illustrated in the accompanyingdrawings, in which Figure 1, represents a view in central ver ticallongitudinal section of my improved separator, mounted upon a suitableturbine for driving it, the turbine being shown in side elevation. Fig.2, represents a top plan view of the separator, partly broken away. Fig.3, represents a sectional view taken on the horizontal plane on the line3-3 of Fig. 1, looking downward. Fig. i, represents a view similar tothat of Fig. 3 on the plane on the line l4: of Fig. 1 also looking downward.

Like reference characters mark the same parts wherever they occur in theseveral figures of the drawings.

Referring specilii- 'ally to the drawings, 10 indicates the casi i of aturbine or other motor suitable for a separator, the same beingpiiovided with a vertical shaft 11 upon Specification of Letters Patent.Patented N 3 @915,

1911. Serial No. 611,134.

which the separator is mounted and with which the separator is revolvedhorizontally, in the usual manner of machines of this class. Upon thetop 12 of the casing 10. of the turbine, around the shaft 11, is mounteda sleeve 13, the upper end 14 of the shaft 11 being decreased indiameter, leaving an annular shoulder 15 upon which is mounted thecentral flat top or apex 16 of a metallic cone 1'? whiclnat its lowerend, or

periphery is curved to substantially the horizontal, as at 18. Thereduced upper end 14 of the turbine shaft 11 is threaded and a nut 19 onthis part securely holds the cone 17 in position.

Rigidly secured above the cone117. is a frustum 20 of a different pitchfrom that of the cone so that there is formed between the two cones achamber 21 of gradually decreasing width from top tobottom. The open topor mouth 22 of said chamber 21 is much greater in diameter than the apexof the cone 1'7. The lower edge of the frustum 20 terminates a shortdistance above the curve of the portion 18 of the cone 17, leaving anannular space or opening 23 to be later referred to. Projecting sli htlywithin the mouth 22 of the cone 20 is a vertical pipe 2 through whichthe liquid to be clarilied, or separated into its constituent parts, isdischarged into the separator.

Radiating'in downwardly inclined directions from the top 12 of thecasing of the turbine, are ribs 25 which are secured at their ends to,or formed integral with the inner flange 26 of a reversed annularchannel bar 2?, to the outer flange 28 of which is secured the outerwall 29 of the bowl of the separator, the said wall being of cylindricalform andsupporting on its top an inwardly and slightly downwardlyextending annular plate 30. lFhe ribs 25 and the annular plate 27 formthe bottom of the bowl while at the top there is mounted below andpartially jects over the cylinder 37, and from the upper edge of thecylinder 37 there projects outwardly and downwardly an annular plate 39,into the trough 36. In one side or more of the cylinder 37 is an opening-10, and outside of this opening, whether one or more, is a dischargepipe ll, the lower side of which is on a level with plate 34, of thebottom of the trough, said discharge pipe being inclined downward inorder to discharge the which passes through it into any materla isuitably placed receptacle.

Secured upon the top of the annular channel bar 27 and to the inside ofthe outer wall 29 of the bowl separator are radial vertical plates orpartitions 14 whose upper inner corners are cut away so as to formvrests15 for the skinnning disk 35, said plates dividing the space between theperiphery of the bowl and the outlet into compartments in which theliquid will be practically at rest and in which the impurities will bedeposited and be retained while the liquid escapes through the o ening 3It will be observed that the bowl is open at the top and at the bottom.T? cone 17 forms a cover for the opening in the bottom with said coi erspaced from the bottom. As the liquid to be clarified is introduced intothe bowl 29 through the supply pipe 24;, the liquid falls on the lowercone 17. The bowl being'in rapid rotation, the liquid is thrown outwardby the centrifugal force a ainst the cone 20 and is carried down anddischarged through the opening 23 through which the discharged liquidflows outwardly against the periphery of the bowl 29 where it willaccumulate until it forms a cylinder of liquid. The inner surface of thecylinder of liquid will be parallel with the axis of the bowl and on aline with the opening in the top of the bowl. The heavier parts, such asmud, etc., contained in the liquid to be clarified will be thus carriedto the periphery of the bowl and be deposited and retained in thecompartments formed by the annular plate 27, the top of the bowl 530,the periphery of the bowl 529 and the plates 44. The lighter impuritieswill gather on the inner surface of the cylinder of liquid nearest theaxis of the bowl. By virtue of the cone 17 being centered over theopening in the bottom of the bowl and spaced therefrom and having itslower edge flared outwardly, and the frustum 20 being centered over thecone and spaced therefrom and. also spaced from the skimming disk, thecone and frustum cooperate to form an open ended compartment 21 andprevent the liquid from splash; ing against the contents between thefrustum and the periphery of the bowl, thereby causing theliquid to besubjected to an ellicient centrifugal action. As the centrifugal forceforms the liquid into a cylindrical merger cover of the bowl and theskimming disk 35,

when it will again rise and pass over the .annular cover of the bowl andbe turned.

outward by centrifugal force into trough 36, from which it will bedischarged through an outlet or pipe While the bowl is rotating, thecontents thereof are carried around with it, the radial plates 5%,extending into the contents of the bowl, preventing the rotation of thebowl without the simultaneous rotation of the contents thereof, whichwould occur to some extent in the absence of such radial partition,generating currents and eddies which would disturb the impurities andpreventthem from being deposited and retainedi v When the bowl stopsrotating, all substances remaining in it will be discharged through theopenings in the bottom of the bowl under the cone 17. T he solid matterwhich is deposited in the compartments formed by the plates -14 can bescraped down by reaching through the opening in the top 30 and theskimming E 3k 35 and the'space, allowed for that purpose, between theskimming disk 35 and. the cone 20.

While I have specifically described the exact construction of thevarious parts of my improved separator, it will be obvious to thoseskilled in the art that the invention does not depend entirely upon suchspecific construction and it will be readily understood that many slightchanges and variw tions might be made in the form and material in thevarious component parts, without departing from the spirit and scope ofthe invention.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent of the United States is:

1. A centrifugal separator comprising a bowl whose annular side wall isimperforate and which is provided with a discharge opening in its bottomand at its top also provided with an opening large enough to permitcleaning of the bowl, a cone having a flared lower end centered over theopening in the bottom of the bowl and spaced therefrom, and a frustumcentered and spaced over the flared edge of the cone.

' 2. A centrifugal separator comprising a bowl provided with a large oening in its top and having its bottom provided with an opening in thetop of .on the periphery opening, a skimming disk of larger diameterthan the opening in the top and mounted below the opening in the top toprovide a space between it and the top, the skimming disk having anopening smaller in diameter than the diameter of the opening at the topof the bowl and through which liquid is conveyed to the bowl, theopeningin the bottom of the bowl being of less area than the opening inthe top of thebowl whereby as the bowl rotates liquid will accumulate ofthe bowl incident to centrifugal force and be discharged around andabove said skimming disk directly through the opening in the top of thebowl.

3. A centrifugal separator comprising a bowl provided with a largedischarge opening in the bottom and also with a large discharge openingin its top, a cone centered in the bowl above the opening in the bottom,a frustum centered above the cone at a distance therefromand having anopening in its apex which has a more acute pitch than the cone and askimming disk centered and spaced above said frustum whereby as the bowlrotates the liquid entering the frustum will be carried to the peripheryof the bowl upward and around said disk and disci arged through said topopening of the A centrifugal separator comprising abt-vl, provided witha large opening in its bot-om, and also provided with an opening in itstop which is larger than the opening in the bottom, a cone centered inthe bowl and spaced over said opening in the bottom of the bowl, afrustum centered and spaced over the cone and means for rotating thebowl, the opening in the top of the bowl serving as a discharge outletwhen the bowl is rotated and the opening in the bottom of the bowlserving as a discharge outlet when the bowl is stationary.

A centrifugal separator comprising a rotatable bowl provided with alarge opening in its top and a large opening in its bottom, a conecentered and spaced over the bottom opening, a frustum centered over thecone in spaced relation to the latter, and being of more acute pitchthan the cone,'the cone and frustum being carried by the bowl andarranged to distribute the liquid which is introduced into the bowlthrough the the bowl around the periphery of the bowl at the bottomthereof.

6. A centrifugal separator comprising a bowl provided, with a largeopening nrlts top and a large opening in its bottom, a cone centered andspaced over the bottom opening, a frustum centered over the cone inspaced relation to the latter, the frustum being of more acute pitchthan the cone, the cone and frustum being arranged to distribute theliquid which is introduced into the bowl through the opening in the topof the bowl around the periphery of the bowl the' bottom thereof, theopening in the top 0% the bowl being of greater diameter than theopening in the bottom, whereby, the contents are discharged upwardthrough the opening in the top of the bowl during rotation of thelatter.

7. A. centrifugal separator comprising a bowl provided with a largeopening in its top and with a large opening in its bottom, a conecentered over the opening in the bottom to prevent liquid introducedthrough the opening in the top from fallingthrough the opening in thebottom during rotation of the bowl and permitting discharge of thecontents of the bowl through the bottom opening when the bowl ceases torotate.

8. A centrifugal. separator comprising a bowl whose shell is imperforateand which bowl is provided with a discharge opening in its top and withan opening in its bottom the upper opening being of greater diameterthan the lower opening, a cone disposed over the opening in the bottomand whose lower edge terminates above the plane of the'bottom of thebowl, a frustum disposed beneath the opening in the top and centered andspaced above the cone to provide a chamber between them.

9. A centrifugal separator comprising a bowl provided with an opening inits top and with an opening in its bottom, a'skimming disk of largerdiameter than the opening in the top disposed within the bowl andcentered below the opening in the top, the

skimming disk having a central circular opening of smaller diameter thanthe opening in the top of the bowl, a cone centered over the opening inthe bottom of the bowl and spaced therefrom, and a frustum centered overthe cone and spaced therefrom.

10. A centrifugal separator comprising a bowl provided with a largeopening in its top, a skimming'disk of larger diameter than the openingin the top which is centered within the bowl and spaced from the openingin the top, said disk having a circular opening-.in its center ofsmaller diameter than the opening in the top of the bowl, a conedisposed within the bowl below the skimming disk and centered withrelation to the opening in the latter, and a frustum centered within thebowl in spaced relation to the cone.

11'. A centrifugal separator comprising a bowl provided with a largeopening in its top and an opening in its bottom, radial vertical platessecured to the interior of the bowl and forming compartments to retainscums, a skimming disk of larger diameter than the opening in the top ofthe bowl which is disposed within the bowl and centered and spacedbelowthe opening in the I top of the bowl, a cone mounted within thebowl and spaced-below the ope n firng' in, the

top of the bowl, and a frustum disposed within the bowl and centered andspaced mounted, a channel plate secured to the shell of the bowl at thebottom thereof and forming a portion of the bottom of the bowl, theremaining portion of the bottom of the bowl being open, a coveringmember connected to the shaft and disposed over the open portion of thebottom of the bowl, and ribs secured at their inner ends to said covermember and at their outer ends to the inner side of said channel plate,said cover member resting on said ribs.

13. A centrifugal separator comprising a rotatable bowl provided with anopening in its top and with an opening in its bottom, means for rotatingthe bowl, means for supplying liquid to the bowl through the opening-intire top thereof, and means including a cone and a frustum disposedwithin the bowl and spaced from the bottom to receive the supply ofliquid delivered to the bowl and adapted to deflect the liquid outwardlyto the periphery of the bowl and prevent discharge of theliquid throughthe bottom opening in the bowl during rotation of the bowl andpermitting discharge of the liquid through the bottom opening when thebowl ceases to rotate.

14. A centrifugal separator comprising a v rotatable bowl provided withan opening in its top and with an opening 1n its bottom, means forrotating the bowl, means for supplying liquid to the bowl through theopening in the top thereof, and a cone and a frustum disposed within thebowl and.

spaced from the bottom thereof to receive the supply of liquid deliveredto the bowl and adapted to deflect the liquid outwardly to the peripheryof thebowl, radial spaced plates in the bowl forming compartments-tocause the liquid thrown to the periphery of the bowl torotate as fast asthe rotation of the bowl, a skimming disk supported on said radialplates and spaced from the opening in the top of the bowl and around andover which skimming disk the liquid is thrown by the centrifugal forcedeveloped incident to rotation of the bowl and out through the openingin the top of the bowl.

15. A centrifugal separator comprising a rotatable bowl provided with anopening in its top and with an opening in its bottom, means for rotatingthe bowl, means for supplying liquid to the bowl through the opening inthe top thereof, and a cone and a frustum disposed within thelbowl andspaced from the bottom of the bowl to rceive the supply oflifiuiddelivered to the bowl and adapted to deflect the liquid outwardlyto tl1eperiphery of the bowl, radial spaced plates in the bowl formingcompartments to mental cause the liquid thrown to the periphery of thebowl to rotate as fast as the rotation of the bowl, skimming disksupported on said radial plates and spaced from the opening in the topof the bowl and around and over which skimming disk the liquid is thrownby the centrifugal force developed incident to rotation of the bowl andout through the opening in the top of the bowl, and a trough arranged toreceive the clarified liquid discharged through the opening in the topof the bowl.

16. A centrifugal separator comprising a rotatable bowl provided with adischarge opening in its top and with a discharge opening in its bottom,said openings being arranged in alinement, the top opening being oflarger diameter than the bottom opening, means for rotating the bowl, acone and a frustum constructed and arranged within the bowl and spacedfrom the bottom thereof and rotatable with. the bowl to distribute theliquid in the bottom of the bowl and deflect it toward the peripheryofthe latter.

11A centrifugal separator comprising a bowl provided with an opening inits bottom and also provided with an opening in its top which is largerthan the opening in the bottom, a cone and a'frustum disposed within thebowl and spaced from the bottom of the bowl, and a skimming devicearranged below the opening in the top of the bowl and having an openingtherein which is smaller than the opening in the top of the bowl.

18. A centrifugal separator comprising a bowl provided with an openingin its bot tom and also provided with an opening in' its top which islarger than the opening inthe bottom, a cone and a frustum disposedwithin the bowl and spaced from the bottom of the bowl, a skimmingdevice aranged below the opening in the top of the bowl and having anopening therein which is smaller than the opening inthe top of the bowl,and radial. vertical plates secured to the interior of the bowl to formcompartments and on which plates said skimming disk is supported.

bowl provided with an opening in its top and with an opening in itsbottom, the top opening being larger than the bottom opening, a skimmingdisk of larger diameter than the opening in the top disposed within thebowl and centered below the opening in the top and having a centralcircular opening of smaller diameter than the opening in the top of thebowl, a cone centered over the opening in the bottom of the bowl andspaced therefrom and having its lower edge flared outwardly, and afrustui'n centered over the cone and spaced therefrom and also spacedfrom the skimming disk and adapted with the cone to form an open-endedcom- ,an efficient centrifugal action.

20. A centrifugal separator comprising a bowl provided with. a dischargeopening at its top, a skimming disk of larger diameter than the openingin the top and which is centered in the bowl and spaced below said.

opening in the top, said disk having a circular opening in its center ofsmaller diame ter than the opening in the top of the bowl, the bowl alsohaving a large opening in the top and which is larger than the openingin the skimming disk, a cone disposed withinthe bowl below the skimmingdiskand centered with relation to the opening in the latter, 'a frustumcentered Within the bowl in spaced relation to the cone, and radialveltical plates within the bowl between: the annular wall thereofand-saidcone and frustum adapted to prevent the lighter impuritiesseparated fro'mthe liquid from becoming mixed with the'clarified liquidwhich passes through the discharge opening in'th'e top of the bowl. I

In testimony whereof I have afiixed my signature in presence of twowitnesses.

Witnesses:

E. M. SANFORD, 'L. B. TEMPS.

